Apparatus for mounting a roller in a cavity in a member



Sept. 7., 1948.

Hill l M. ROYER APPARATUS FOR MOUNTING A ROLLER IN A CAVITY IN A MEMBER Filed May 28, 1947 (Hyg 6 6 A,\\\\\\\\\\\\\\\\\\\\\\\\\\\\\v Jarfe'o el' Patented Sept. 7, 1948 APPARATUS FOR MOUNTING A ROLLER 1N A CAVITY IN A MEMBER Marcel Royer, St. Eustache sur le Lac, Quebec, Canada Application May 28, 1947, Serial No. 751,160

2 Claims. 1

The present invention pertains to the mounting of a roller in the cavity of a member such as the header strip of a Venetian blind, According to present methods this is an awkward and inexact operation, due to the difficulty of properly supporting the roller while the axle -pin is being driven into the rail. The object or the present invention is to provide a novel apparatus and method for performing this operation.

According to the invention there is provided a. rest block having a seat in which the roller can be supported. The rail or other member is next inverted and adjusted so that its cavity receives the rest block and roller. The roller is thereby properly positioned in the cavity and is ready for the driving of the axle pin.

For the latter purpose there is provided a guide which is preferably in the form of a block with a groove adapted to hold the pin in axial alinement with the roller. A mechanical hammer is then preferably employed to drive the pin into the header rail and axially through the roller.

The invention is fully disclosed by Way of example in the following description and in the accompanying drawings in which:

Figure 1 is a perspective view showing the invention in use;

Figure 2 is a longitudinal section of the apparatus;

Figure 3 is a similar section showing a roller mounted therein;

Figure 4 is a similar section showing the header rail mounted over the roller;

Figure 5 is a section similar to Figure 4, showing the pin driven through the roller;

Figure 6 is a section on the line 6-6 of Figure 5;

Figure 7 is a detail corresponding to Figure 5, and showing the rail and roller removed from the apparatus; and

Figure 8 is a plan view ofFigure 4.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

In several of the figures is shown a rail I having a cavity 2 in which a roller 3 is to be mounted. The rail I may be, for example, the header rail of a Venetian blind. As shown in Figures 5 and '1, the roller is not ush with the open end oi the cavity nor does it engage the bottom of the cavity, inasmuch as it must turn freely. Consequently, the operation of mounting the roller in the cavity is ordinarily a diiiicult and awkward process, and the nail which is driven through the roller as an axle is not uniformly and accurately located.

According to the invention there is provided a rest block 4 having in its upper surface a concave seat 5 adapted to support the roller 3, as shown in Figures 3 and 4. The block 4 has the width of the cavity 2, and the rail I is laid, with the cavity 2 downward, in such manner that the cavity receives the block 4 and the roller supported thereby, as shown in Figure 4. The block 4 may be located on a base 6 by pins I if desired.

Adjacent to the rail l is mounted a guide block 8 having a groove 9 adapted to receive a pin II). It will be understood that the block 8 may readily be mounted on the base 6 in a manner to position the bottom' of the groove 5 and hence the nail I0 in alinement with the axis or center of the seat 5. A iiat spring II having a nail hole II is bound around the block 8, with its free ends I2 forming a narrow space co-axial with the groove 9 and disposed between the block 8 and the rail I, The space is adapted to receive the point I3 of the pin and thus serves as a guide for the pin as it is driven into the rail I by means that will presently be described.

Adjacent to the tapered end I4 of the pin III is mounted a mechanical hammer I5 with-its plunger I6 adapted to engage the head I4. As the pin II) is advanced by the hammer, the tapered head I4 eventually is forced through the space between the ends I2 and is finally embedded in the rail I, as shown in Figure 5. The rail is then withdrawn from the block 4, and the roller 3 is mounted therein by the pin 9 and in the desired position, as illustrated in Figure '7 Although a specific embodiment of the invention has been illustrated an-d described, it will be understood that various alterations in the details of construction may be made Without departing from the scope of the invention as indicated by the appended c1aims.

What I claim as my invention is:

1. An apparatus for mounting a roller in a cavity of a member, comprising a rest block adapted to t in such cavity and having a seat adapted to support a roller, a guide block having a groove alined coaxially with said seat and adapted to support a pin, and a iiat spring bound around said guide block and having its ends spaced apart at the end of said groove nearer said rest block.

2. An apparatus for mounting a roller in a cavity of a member, comprising a rest block adapted to fit in such cavity and having a .seat adapted to support a roller, a guide block having a groove alined coaxially with said seat and adapted to support a pin, and a. :dat spring bound seat.

MARCEL ROYER. REFERENCES CITED The following references are of record in the le of this patent:

Number UNITED STATES PATENTS Name Date Lorentzen Oct. 28, 1941 De Bella et a1. June 2, 1942 

